package phone.example.com.a36kr.tools;

import android.os.Handler;
import android.os.Looper;

import com.litesuits.orm.LiteOrm;
import com.litesuits.orm.db.assit.QueryBuilder;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import phone.example.com.a36kr.bean.LocalBean;
import phone.example.com.a36kr.other.mybmob.MyBmobUser;

/**
 * 数据库的操作类
 * 使用单例模式,因为LiteOrm要求
 * 其他数据库框架 GreenDao,OrmLite
 * Created by dllo on 16/8/31.
 */
public class DBTool {

    //liteOrm 对象,曾删改查方法 都操作此对象
    private LiteOrm mLiteOrm;
    //Handler 用来做线程切换,为了在主线程来执行回调,返回数据
    private Handler mHandler;

    //线程池
    //核心线程数是
    ExecutorService threadPool = Executors.newFixedThreadPool(3);


    private static DBTool ourInstance = new DBTool();

    public static DBTool getInstance() {
        return ourInstance;
    }


    private DBTool() {
        //初始化liteOrm对象
        //使用MyApp里的全局Context
        //第二个参数是 数据库的名字
        mLiteOrm = LiteOrm.newSingleInstance(MyApp.getContext(), "MyDataBase.db");
        //初始化Handler
        //Handler的构造方法 参数如果传
        // Looper.getMainLooper()
        // 代表这个Handler 一定会回调到主线程
        // 属于严谨的写法

        mHandler = new Handler(Looper.getMainLooper());

    }

    //向数据库插入一个数据

    public void insertData(final LocalBean localBean) {
        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                mLiteOrm.insert(localBean);
            }
        });

    }


    //查询用户名的方法

    public void queryUesr(final QueryListener queryListener) {

        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                ArrayList<LocalBean> nativeBeen = mLiteOrm.query(LocalBean.class);
                mHandler.post(new HandlerRunnable(nativeBeen, queryListener));

            }
        });
    }


    public void unRepetition(final String a, final String s, final String user, final String guser, final QueryListener queryListener) {
        threadPool.execute(new Runnable() {
            @Override
            public void run() {
                //条件查询
                QueryBuilder<LocalBean> builder = new QueryBuilder<LocalBean>(LocalBean.class);
                builder.where(a, s);//加入条件
                builder.whereAppendAnd();
                builder.whereAppend(user, guser);
                ArrayList<LocalBean> localBeen = mLiteOrm.query(builder);
                //放到主线程回调
                mHandler.post(new HandlerRunnable(localBeen, queryListener));
            }
        });
    }


    class HandlerRunnable implements Runnable {

        ArrayList<LocalBean> localBeens;

        QueryListener mQueryListener;


        //构造方法


        public HandlerRunnable(ArrayList<LocalBean> localBeen, QueryListener mQueryListener) {
            this.localBeens = localBeen;
            this.mQueryListener = mQueryListener;
        }

        @Override
        public void run() {

            mQueryListener.onQueryComplete(localBeens);
        }

    }

    public interface QueryListener {

        void onQueryComplete(ArrayList<LocalBean> localBeen);


    }

}


